5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
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I have a 1992 525i m50 5spd and found a 1995 M3 parting out. I wanted to know if the engine tranny and diff would fit into my car, and is it fairly easy? also what else would I need ECU. exhaust manifold etc.. thank you sooo much!
Thank you for letting me know it fits I also need to know what I need, do I need the M3 transmission, or will my stock work, and can I use the 95 M3s differetial, when I install the new ECU will it plug-and-play so to speak, or do I need a whole new wiring setup. Lastly do I need the M3's exhaust manifold, or will my stock exhaust work (dinan muffler) thank you!
you would need the ecu, probably would plug right since they were made at almost the same time...3 year difference.
if you have a stick in the 525 and the m3 is a stick, it would be real easy to swap the tranny too... if one is stick and the other one auto, it would probably cost you to much time and money, and would be best to stick with whatever you got.
Hey guys, thanks for the feed back, but I have mixed reviews. Isnt the m3 s50 motor and the 525i m50 motor the same block therefore using the same engine mount. I'm not sure and am asking, please let me know thanks!!
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I have a 1992 525i m50 5spd and found a 1995 M3 parting out. I wanted to know if the engine tranny and diff would fit into my car, and is it fairly easy? also what else would I need ECU. exhaust manifold etc.. thank you sooo much! 
I also need to know what I need, do I need the M3 transmission, or will my stock work, and can I use the 95 M3s differetial, when I install the new ECU will it plug-and-play so to speak, or do I need a whole new wiring setup. Lastly do I need the M3's exhaust manifold, or will my stock exhaust work (dinan muffler) thank you! 
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